Materials
  • saran wrap tube
  • block of styrofoam
  • sheet of balsa wood
  • dime roller
  • small piece of straw
  • paper clip
  • thick foam
  • plastic bag
  • thread
  • elastic
  • 2 engines (B and C)
  • electric tape
  • scotch tape
  • carpenters glue
  • hot glue
  • acrylic paint
  • scissors
  • knife
  • paper
  • baby powder
  • wadding
  • igniter

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